baber/WOPTO huggingface dataset:
Patent GB-2071765-A (GB)
Title: Centrifugal Pump
IPC: F04D29/44
Filed: 1981-01-09
Abstract: A centrifugal pump has a first, bladed impeller rotor 14 and a second rotor 15 which surrounds the rotor 14 and has an inner circumference which lies closely adjacent the periphery of the rotor 14. The second rotor 15 has a plurality of apertures 34 through which substantially the whole volume of a fluid passing between the pump inlet 12 and a tangential outlet is constrained to flow. The second rotor 15 may be driven at half the speed of the first rotor 14, thereby reducing dynamic drag between the rotor 14 and the pump housing 10. Alternatively the rotor 15 may be driven by the passage of fluid therethrough and at least part of the work otherwise lost as dynamic drag may be recovered on a shaft 22. <IMAGE>
Patent GB-2069046-A (GB)
Title: Internal combustion engine cylinder oil cooling
IPC: F01P3/02
Filed: 1981-02-02
Abstract: Over a part of the length of each cylinder liner 1, the cylinder block 2 is cut away to define an annular recess 5 surrounding the liner. Oil is pumped from the sump via a water-cooled heat exchanger 9 to a channel 6 at the top of the recess. It passes uniformly down to the outside of the cylinder liner to a channel 7 connected to a choke 13a to maintain pressurisation. The heat exchanger cooling water also flows through the cylinder head 17 and cools a fuel injector therein. <IMAGE>
Patent GB-2071404-A (GB)
Title: Excess voltage arresters
IPC: H01T4/12
Filed: 1981-02-13
Abstract: An excess voltage arrester in which the internal surface of a gasfilled enclosure 1, 3 is provided with an electrically conductive stripe 23, incorporating a quantity of nickel isotope 63. The conductive stripe(s) 23, which may be of circular circumferential shape as shown or axial straight lines, may comprise graphite, nickel 63 and a filler such as Kaolin clay, e.g. applied by a pencil having a "lead" of that composition. Radial heads 17, 19, 21 connect respectively with electrodes 9, 11 and 13, 15. The stripe stabilises fast rising voltage breakdown, and D.C. voltage breakdown. <IMAGE>
Patent GB-2072613-A (GB)
Title: Process for preparing microcapsules
IPC: C08G18/18
Filed: 1981-02-17
Abstract: According to the present invention a process for preparing microcapsules with the use of a polyisocyanate as a film forming material and a derivative of Michler's hydrol as a chromogenic material by polymerizing the polyisocyanate at the interface between an oily liquid and an aqueous liquid to form a microcapsule film, the derivative of Michler's hydrol being represented by the formula   <IMAGE> wherein R1, R2, R3 and R4 are the same or different and are each alkyl; alkyl substituted with halogen, alkoxy or cyano; aralkyl, or aralkyl substituted with halogen, alkyl, alkoxy, cyano, substituted amino or nitro; X and Y are each halogen; alkyl; alkoxy; substituted amino or nitro; m and n are each 0 or an integer of 1 or 2; and Z is OH; N3; SO2-R5; NH-R5 or   <IMAGE> wherein R5 and R6 are the same or different and are each alkyl; aralkyl, aryl or aryl substituted with halogen, alkyl, alkoxy, cyano, substituted amino or nitro, and R5 and R6, when taken together, form a heterocyclic ring, the microcapsules being formed in the presence of a tertiary amine.
Patent GB-2071570-A (GB)
Title: Security envelope
IPC: B42F5/02
Filed: 1981-02-18
Abstract: A sealed display envelope, pouch or pocket for an article inserted therein is made using an envelope blank comprising first and second plastics sheets 3, 1 attached together at one edge 5 so that a self-adhesive side of the first sheet 3 can be brought into overlying registration with and facing the second sheet 10. At least one of the sheets 1, 3 is transparent. A removable protective liner 4 covers all of or a major part of the self-adhesive side of the first sheet 3. In use the article to be displayed is inserted between the first and second sheets, the protective liner 4 is removed from the adhesive side of the first sheet 3 and the first sheet is brought into contact with the article so that it adheres thereto, after which regions of the first sheet projecting beyond the periphery of said article are pressed into contact with the second sheet so as to seal the envelope. <IMAGE>
Patent GB-2097264-A (GB)
Title: Tennis game
IPC: A63F3/00
Filed: 1981-04-25
Abstract: A plurality of rollable pencils carry information on facets which enables a tennis game to be played. Each pencil is printed with a number, with narrative wording, (concerning faults or serves, etc,) on at least some of the facets, and against each item of narrative information a further symbol indicates the next pencil to be rolled for the continuance of the game.
Patent GB-2098471-A (GB)
Title: Improvements in or relating to a chair
IPC: A47C3/04
Filed: 1981-05-15
Abstract: A collapsible chair comprises two frame elements 1, 4 which define, respectively, the rear legs 2, 3 and the front legs 5, 6 of the chair. The frame elements are pivotally interconnected so that the frame elements can be moved to a collapsed position, where the frame elements are substantially in a common plane, and to an erected position, where the frame elements are angularly separated. The chair also comprises a seat 11 on a frame 10 that is pivotally connected at 13, 14 to the rear legs. When the frame elements are in the collapsed position the seat lies substantially in the common plane. The various components of the chair are such that a second identical erected chair may be stacked on the said erected chair with the frame elements of the second chair being substantially parallel with, and nested with, the corresponding frame elements 1, 4 of the first chair. <IMAGE>
Patent GB-2086903-A (GB)
Title: Novel Quinazolinones and Their Use in the Preparation of Triazoloquinazolinone Derivatives
IPC: C07D487/04
Filed: 1981-11-09
Abstract: Novel quinazolinone derivatives of general formula II,   <IMAGE>  (wherein X represents a hydrogen or halogen atom or a nitro, trifluoromethyl, methyl or methoxy radical;  n is 2, 3, 4 or 5; and R1 and R2, which may be the same or different, each represents a hydrogen atom or a C1-5 alkyl or C1-5 hydroxyalkyl radical or, together with the nitrogen atom to which they are attached, they represent a saturated heterocyclic ring optionally containing a further heteroatom and/or optionally being substituted by one or more substituents selected from hydroxy, C1-5 alkyl, C1-5 hydroxyalkyl, C3-6 cycloalkyl, formyl, C1-5 acyl, C2-6 alkoxycarbonyl and aryl radicals (said aryl radicals themselves being optionally substituted by a halogen atom or a trifluoromethyl radical), with the proviso that any -NH- groups in -NR1R2 are in protected form, are useful in a process for the preparation of compounds of formula I,   <IMAGE> by reacting the compound of formula II with a formylating agent followed, if required by removal of any protecting groups and/or reaction with an acid to form a salt.
Patent GB-2093974-A (GB)
Title: Safety devices for flued gas appliances
IPC: F23N1/00
Filed: 1981-11-17
Abstract: The safety device comprises a gas control valve (11) in the gas supply line to the gas appliance and a vessel (29) containing a fluid placed adjacent to an aperture communicating with the flue but not in the normal combustion product flow path of the appliance. The control valve has a valve member (20) urged onto a seat (23) by a spring (24) and a latch mechanism (22, 26) for holding the valve member (20) off of its seat. A diaphragm (28), which is connected to the vessel (29) via a capillary tube (30), releases the latch mechanism so that the valve closes when the fluid in the vessel expands, the latter being the result of the deflection of combustion products over the vessel if the flue becomes blocked. <IMAGE>
Patent GB-2089667-A (GB)
Title: Improvements in or relating to separation
IPC: F26B25/00
Filed: 1981-12-09
Abstract: The present invention relates to separation and finds application in the removal of liquid from particulate material having associated liquid. The invention provides a process and apparatus for the removal of liquid from a particulate material having associated liquid. In accordance with the invention gas is passed through an inlet 4 of an apparatus and into a bed 10 of particulate material having associated liquid 10a, gas which has thereby taken up liquid is removed from the bed and the particulate material from which liquid has been removed forms a packed bed in a region 11 wherefrom it is then removed by an ejector pump 5 via an outlet 6, whilst resistance to gas flow through the outlet 6 is provided by the bed 11 to encourage gas to pass through the bed 10 rather than through the outlet 6. <IMAGE>
Patent GB-2096065-A (GB)
Title: Push-towing of barges by tugs.
IPC: B63B35/70
Filed: 1982-03-08
Abstract: In a system for releasably inter- locking tugs and barges, the tug (1) is provided with a bow having a predetermined rake and contour and the barge (2) is provided at its stern with a notch (3) having a configuration adapted to receive the bow of the tug in a close-fitting relationship. The barge is provided on each of its wings (5) defining the sides of the notch (3) at the stern with a rail (6), said rails extending in a transverse plane parallel to the rake of the tug bow. The tug is provided, in its bow region on both port and starboard sides, with hydraulically actuated clamps (4) in tug recesses which are engageable with the rails (6) on the barge (2) and optionally with rails on the tug (1) to hold the tug to the barge in a releasable manner. The barge may have a bow clamp attachment comprising an anchor pin (31), and the tug may have a coupling with a head which passes through a slot in the pin. <IMAGE>
Patent GB-2095156-A (GB)
Title: Manually operable lifting devices
IPC: E01H1/12
Filed: 1982-03-11
Abstract: A pair of rigid hinged hemi- cylindrical parts (10, 11) provided with locking means (14, 15) are releasably supported on a handle by wires (25) and are closed by an operating rod (18) which acts on the line of the hinges of the container. To render the device suitable for lifting dog faeces the wires (25) and operating rod (18) are made readily detachable from the container without any need to touch the container so that the container can be easily and aesthetically disposed of when once used. <IMAGE>
Patent GB-2106338-A (GB)
Title: Fuse holder
Inventor: DAGGETT CHARLES WESLEY
IPC: H01H37/76
Filed: 1982-06-11
Abstract: The holder for cartridge fuses has spring clips (2) which are a snap-in fit, allowing limited rotation to facilitate fuse insertion without breakage. Insulating walls (5) partially shroud the clips from accidental contact. The metal rivet normally used to secure a fuse clip to a base is eliminated, permitting a lower fuse holder profile for a given voltage requirement. Optional subsequent hot-forming of a clip-engaging post (9) on the base provides extra pull strength to the structure. <IMAGE>
Patent GB-2104522-A (GB)
Title: Tetrazine derivatives
Inventor: LUNT EDWARD
IPC: C07D407/04
Filed: 1982-08-23
Abstract: [3H] Imidazo [5,1-d]-1,2,3,5- tetrazine-4-one derivatives of the formula:-   <IMAGE> [wherein R<1> represents hydrogen, or an alkyl, alkenyl or alkynyl group containing up to 6 carbon atoms, each such group being unsubstituted or substituted by from one to three substituents selected from halogen atoms, alkoxy, alkylthio, alkylsulphinyl and alkylsulphonyl groups containing up to 4 carbon atoms, and optionally substituted phenyl groups, or R<1> represents a cycloalkyl group containing from 3 to 8 carbon atoms, and R<2> represents a carbamoyl group optionally N-substituted by one or two groups selected from alkyl and alkenyl groups containing up to 4 carbon atoms, and cycloalkyl groups containing 3 to 8 carbon atoms], are new therapeutically useful compounds possessing antineoplastic and immunomodulatory activity.
Patent GB-2111014-A (GB)
Title: Mounting an instrument in a protective housing
Inventor: OTTO GUNTHER
IPC: B65D85/38
Filed: 1982-11-25
Abstract: For the purpose of accommoding an instrument e.g. cannon 10 in a protective housing 13 in a manner which prevents vibrations, a block 23 of foam material is produced by expanding a foamable composition in the protective housing 13 in the presence of the instrument 10. The instrument 10 is provided with a coating 22 which prevents the foam material from adhering to the instrument. The instrument is urged against the block 23 of foam material either by spacers 25 which are braced against a cover 19. Alternatively, second in situ informed block of foam material covers the top of the instrument 10 and matches the contour of said top. <IMAGE>
Patent GB-2116812-A (GB)
Title: Ground cultivating machine
Inventor: GATTERMANN BERND
IPC: A01B33/12
Filed: 1983-01-19
Abstract: A ground cultivating machine with ground cultivating tools in a line extending transversely to the direction of travel (4) and rotatable about vertical axes, has vertical shielding devices (5) which extend at least approximately in the direction of travel (4) and are each mounted, in a vertically displaceable and laterally deflectable manner laterally adjacent the respective outer tools in order to restrict the soil portions displaced laterally. The shielding devices (5) each comprise at least one member (7) of circular periphery (6) and at least one plate (9) disposed behind the member (7) of circular periphery when viewed in the direction of travel (4) and the member (7) which has a circular periphery (6) is rotatably mounted. <IMAGE>
Patent GB-2118571-A (GB)
Title: Apparatus for brewing beer or wine
Inventor: MCLOUGHLIN ROBERT J
IPC: C12C13/10
Filed: 1983-03-31
Abstract: A process and apparatus for the brewing of beer and wine are disclosed in which all stages of the fermentation take place in a single vessel 10. A lower valved outlet 40 is provided, to which can be sealingly attached a lower small volume bulb 44 downstream of the valve. An upper outlet 16 is also provided, which outlet can be closed with a valve. in a process for brewing beer, during the first fermentation stage the upper outlet 16 is left open, so that top-generated foam is forced out by gas pressure resulting from carbon dioxide generated in the fermentation process and is removed via tube 22. Then the top outlet 16 is closed, and the bottom valve 40 opened to form communication between the main vessel 10 and the air filled small volume bulb 44. Fermentation continues in the closed vessel 10 under pressure for another 4 to 5 days and then the bottom bulb is replaced by a filter unit. In a process for making wine, the upper outlet (16) is kept closed during the first fermentation. <IMAGE>
Patent GB-2119267-A (GB)
Title: Remotely-controlled mobile toy figures
Inventor: CHI-SIUNG CHEN
IPC: A63H13/02
Filed: 1983-04-08
Abstract: A toy formed of two remotely controlled robots one preferably in the shape of a cat and the other in the shape of a mouse. The two robots are separately and remotely controllable and the cat robot acts as a catcher to try to catch the mouse robot which in turn tries to evade catch. The mouse robot has switch means which are preferably electrical contact switches comprising a pair of exposed contacts positioned side by side and insulated from one another. The cat robot has an electrically conductive projection which activates those switches when it touches them. Activation of certain switches disables the robot to simulate a catch and activation of other switches activates a noise producer to simulate escape from attack. <IMAGE>
Patent GB-2118979-A (GB)
Title: Improvements in or relating to fabric winding-on mechanisms for knitting machines
Inventor: FINDLAY PETER MICHAEL
IPC: D04B15/88
Filed: 1983-04-18
Abstract: A fabric winding-on mechanism for a knitting machine includes guide means (16) to receive the fabric (F), and a bale-forming roller (4), said roller being driven by a variable torque motor (8), said motor having low torque characteristics at relatively high rotational wind-on speeds of the said roller (4) and high torque characteristics at relatively low rotational wind-on speeds thereof, there being provided sensing means (20) capable of following the progressive increase in the diameter of a bale formed on the roller and control means (28) capable of continuously varying the torque characteristics of the motor (8) in accord with a signal produced by the sensing means and in response to incipient changes in the tension in the fabric (F). <IMAGE>
Patent GB-2138362-A (GB)
Title: Printing machines
Inventor: RICHARDSON MICHAEL HEDLEY
IPC: B41F3/30
Filed: 1983-04-21
Abstract: A conventional flat bed letterpress printing machine is converted to use dry litho plates by replacing the existing base of the machine by a specially designed base (16). The base (16) is flat on both surfaces to very fine tolerances and the dry litho plate (20) is brought into close face-to-face contact with the base (16), eg by suction or by tensioning the dry litho plate across the base (16). <IMAGE>
Patent GB-2120344-A (GB)
Title: Divided waterway 3-hole fittings
Inventor: IQBAL MUHAMMAD
IPC: F16L27/047
Filed: 1983-05-05
Abstract: So that the connection of the sidecocks (10, 12) to the centrebody (19) can be particularly simple, connection assemblies include a double ended "banjo" fitting (30) surrounding a cylindrical portion (32) of the centrebody (14) leak-proof seals being formed on opposite sides of said cylindrical portion of the centrebody and surrounding apertures (eg 42) opening into respective passage, by inner ends of resilient sleeves (44), the outer ends of the sleeves being acted upon by elements (24) with part-spherical seating surfaces within respective nuts (26) engaging screwthreaded spigot portions of the "banjo" fitting. <IMAGE>
Patent GB-2128129-A (GB)
Title: Production of roofing tiles
Inventor: BLAKE JOHN RICHARD
IPC: B28B7/46
Filed: 1983-08-19
Abstract: Roofing tiles are produced from cementitious material filled into a mould cavity 10 at A, and vibrated at B to consolidate it. Then the mould cavity is closed by a head 28 having a perforated, shaped lower surface. Vacuum is applied to the head via a line 38 to suck air and water from the cementitious material, with continued vibration. This leaves a nearly completely set tile as shown at D. <IMAGE>
Patent GB-2128185-A (GB)
Title: Preparation of glycidyl derivatives
Inventor: WANG CHUN SHAN
IPC: C07D301/28
Filed: 1983-09-12
Abstract: A process for preparing glycidyl derivatives of compounds having at least one aromatic hydroxyl group or aromatic amine group per molecule by reacting a compound having at least one aromatic hydroxyl group or aromatic amine group per molecule with an excess of an epihalohydrin in the presence of an alkali metal hydroxide is characterized by (1) conducting the reaction ture. The process of this invention in the presence of an organic solvent which codistills with water and and said epihalohydrin at a boiling point below the boiling point of the lowest boiling compound among the components in the reaction mixture; (2) conducting the reaction at a temperature and a reduced pressure sufficient to provide a distillate with a boiling point of from 45 DEG  to 80 DEG C; (3) employing said alkali metal hydroxide as an aqueous solution and adding said aqueous alkali metal hydroxide in a continuous manner over a period of from 0.5 to 10 hours; (4) continuosly removing water by means of codistillation at a rate such that the water content of the reaction mixture is less than 6 percent by weight; and (5) separating the water from the codistillate and returning the solvent and epihalohydrin to the reaction mixture. The process of this invention maximizes the epihalohydrin yields and produces epoxy resins low in hydrolyzable halide.
Patent GB-2149874-A (GB)
Title: Building structure
Inventor: BAILEY ROGER
IPC: E04B1/21
Filed: 1983-09-22
Abstract: An assembly of a column 20, at least one beam 26 and a connector 24 comprises at least two plates (40) disposed in opposed faces of the column and four interconnecting elongate members (44) of square cross-section, each being welded to an area of each plate adjacent respective corners thereof. A cleat (24) is secured by bolts (47) to one of the plates (40) and to the elongate members, the bolts engaging in tapped bores (46, Fig. 3) in end portions of each elongate member. Each cleat comprises an angle member and a web (36) which fits into a recess 30 in an end portion of a beam 26 supported thereby. <IMAGE>
Patent GB-2136395-A (GB)
Title: A bag package
Inventor: FROIDH ARNE
IPC: B65D33/24
Filed: 1984-03-05
Abstract: A bag intended for automatic packaging of e.g. sanitary towels, comprises a front and a rear part (7, 8) and a bottom (9), a transverse strip (10) being arranged on the front part at its free end portion, the strip being united with the front part by spot welds (11, 12) at least along the upper edge of the latter. After filling, the bag is intended to be sealed by welding, subsequent to which the bag is openable by breaking said spot welds (11, 12) and possible further seals (15), so that the strip acts as a flip-top for the bag.   <IMAGE>
Patent GB-2142686-A (GB)
Title: Locking mechanism for sliding doors or windows
Inventor: DARBY ALAN
IPC: E05B65/08
Filed: 1984-03-12
Abstract: A locking mechanism for a sliding door or window, comprising panel members mounted for relative sliding movement, comprises an apertured keeper 31 which may be mounted on one of the members with the aperture thereof facing towards the other of the members, the aperture being of non-circular shape, and a bolt assembly which may be mounted on the other of the panel members. The bolt assembly comprises a bolt 19 which is rotatable about a bolt axis, and which comprises a head 24 which is also of non-circular shape, the bolt being capable when in and unlocked position of entering the aperture, and upon rotation of the bolt through 90 DEG  to a locked position, retraction of the head through the aperture is prevented. <IMAGE>
Patent GB-2155857-A (GB)
Title: Laminating protective jackets onto book covers
Inventor: CROUCHER ANTONY HARRY
IPC: B42D3/00
Filed: 1984-03-15
Abstract: At a loading station A the pages of a book 34 are clamped between the jaws of a carrier head which is lowered to C where the jaws are momentarily opened to align the spine against table 156. The spine is lowered onto an adhesive-covered protective sheet at D. After advancement therewith to laminating station E, the portion is severed at D' and a support table is retracted to allow rollers to move upwardly to press the sheet onto the outside of the cover. When the outer edge of the cover is reached the rollers reverse direction and press projecting flange portions of the protective material against the inner surface of the cover. The carrier head then returns to station A for unloading. The apparatus is particularly used for laminating polyester dust jackets to paper-back books for libraries or as text-books. <IMAGE>
Patent GB-2139311-A (GB)
Title: Concentric pipe system
Inventor: SCHIPPL KLAUS
IPC: F16L59/065
Filed: 1984-04-03
Abstract: For absorbing residual gases in concentric pipe systems for transporting or receiving very low- temperature liquids or gases, chemical getters are used which are arranged in an annular space between two pipes of the pipe system. <IMAGE>